Geological drilling sampler

Abstract

The invention relates to a geological drilling sampler, and belongs to the technical field of bottom layer testing, the geological drilling sampler comprises a sampling box, a sampling outer cylinder is arranged in the sampling box, a sampling inner cylinder is slidably inserted in the sampling outer cylinder, and a driving assembly is connected in the sampling box; the driving assembly can drive the lower ends of the sampling outer cylinder and the sampling inner cylinder to penetrate through the sampling box, and the bottom of the sampling inner cylinder is connected with a sampling plugging assembly for plugging the bottom of the sampling inner cylinder; the plugging assembly is connected with the driving assembly and can be driven by the driving assembly to plug the side wall of the lower end of the sampling inner cylinder. The geological sample sampling device has the effect of realizing stable sampling of geological samples.

Description

Technical Field

[0001] The present application relates to the technical field of bottom layer testing, and in particular to a geological drilling sampler. Background Art

[0002] Geological drilling refers to a geological project that uses certain drilling machinery and technology to obtain rock and mineral cores below the surface in order to make reliable evaluations of geological and mineral resource parameters.

[0003] At present, in the process of geological drilling sampling, samples are mainly collected through samplers. Specifically, the sampling tube is inserted into the ground and the sample under the surface is taken out through the sampling tube for testing.

[0004] However, in the process of pulling samples through the sampling tube, the samples may easily slide down the sampling tube, thereby causing the trouble of repeated sampling, which may further affect subsequent research operations on the samples. Summary of the invention

[0005] In order to achieve stable sampling of geological samples, the present application provides a geological drilling sampler.

[0006] The geological drilling sampler provided in this application adopts the following technical solution: A geological drilling sampler comprises a sampling box, wherein a sampling outer cylinder is arranged inside the sampling box, a sampling inner cylinder is slidably inserted inside the sampling outer cylinder, a driving assembly is connected inside the sampling box, the driving assembly can drive the sampling outer cylinder and the lower end of the sampling inner cylinder to pass through the sampling box, the bottom of the sampling inner cylinder is connected to a sampling sealing assembly for sealing the bottom of the sampling inner cylinder, the sealing assembly is connected to the driving assembly and can seal the lower end side wall of the sampling inner cylinder under the drive of the driving assembly.

[0007] By adopting the above technical solution, in actual use, the sampling outer cylinder and the sampling inner cylinder are driven by the driving component to be inserted into the ground, and then the sealing component is driven by the driving component to seal the end side wall of the sampling inner cylinder, thereby realizing the geological sampling process and reducing the phenomenon of samples inside the sampling inner cylinder falling during the movement of the sampling inner cylinder.

[0008] Optionally, the driving assembly includes a driving motor located inside the sampling box, the output shaft of the driving motor is fixedly connected to a driving gear, one side of the driving gear is meshed with a slave gear ring, and the slave gear ring is threadedly sleeved to the outside of the sampling outer cylinder.

[0009] By adopting the above technical solution, when it is necessary to move the sampling outer cylinder and the sampling inner cylinder, the driving motor is started, and the driving motor drives the driving gear to rotate. During the rotation, the driving gear drives the slave gear ring to rotate. Since the slave gear ring is threadedly connected to the sampling outer cylinder, the slave gear ring can drive the sampling outer cylinder and the internal sampling inner cylinder to be plugged into the underground during the rotation.

[0010] Optionally, the sampling inner cylinder is slidably and rotatably connected to the sampling outer cylinder, the upper end of the sampling inner cylinder is fixedly connected to a rotating disk, the upper side of the sampling gear ring is fixedly connected to a connecting sleeve which is sleeved on the outside of the sampling outer cylinder, a plurality of rotating blocks are slidably inserted on the inner wall of the connecting sleeve, and each of the rotating blocks is connected to one side with a rotating spring which can drive the rotating block to move out of the connecting sleeve, and a plurality of rotating card slots for inserting the rotating blocks are opened on the side wall of the rotating disk.

[0011] By adopting the above technical solution, during the rotation of the driving motor, the driving motor drives the connecting sleeve to rotate. When the rotating disk is inserted into the middle position of the connecting sleeve, the rotating block is inserted into the rotating card slot, so that the driving motor can drive the rotating disk to rotate during the rotation process, and drive the sampling inner cylinder to rotate during the rotation of the rotating disk, thereby reducing the interference fit between the sample and the sampling inner cylinder in the sampling inner cylinder, thereby affecting the subsequent process of moving the sample out of the sampling inner cylinder.

[0012] Optionally, the upper end of the outer wall of the sampling outer cylinder is set as a smooth rod, and a limiting block is fixedly connected to the outer wall of the sampling inner cylinder, and the limiting block is slidably connected to the inner wall of the sampling outer cylinder along the length direction of the sampling outer cylinder, and a rotating groove for the rotation of the limiting block is opened on the inner wall of the sampling outer cylinder, and a push rod is provided on the lower side of the rotating groove, and a push rod gear is threadedly sleeved on the outer side of the push rod, and the outer wall of the sampling inner cylinder is fixedly connected with a push rod gear ring meshing with the push rod gear, and the upper end of the push rod can be inserted into the inside of the rotating groove and abut against the lower side wall of the limiting block.

[0013] By adopting the above technical scheme, by setting the upper end of the outer wall of the sampling outer cylinder as a bare rod, the sampling outer cylinder can be kept in a fixed position while the driving motor drives the sampling inner cylinder to rotate, and by setting a push rod, the push rod gear ring can be driven to rotate during the rotation of the sampling inner cylinder, the push rod gear ring drives the push rod gear to rotate, the push rod gear drives the push rod to move, and then the push rod drives the limit block to move upward, the limit block drives the sampling inner cylinder and the rotating disk to move upward, the rotating disk cooperates with the rotating block to drive the sampling outer cylinder to move upward, and then the sampling outer cylinder is matched with the sampling gear ring thread again, which facilitates the staff to retract the sampling outer cylinder and the sampling inner cylinder into the sampling box.

[0014] Optionally, the sealing assembly includes multiple card plates, each of which is slidably inserted into the side wall of the adjacent sampling outer cylinder, each of which can be moved out of the side wall of the sampling outer cylinder and abut against the end side wall of the sampling inner cylinder, and multiple card plates are spliced ​​together to seal the end side wall of the sampling inner cylinder, each of which is fixedly connected to a card block, and each of the card blocks can be radially inserted into the end side wall of the sampling inner cylinder.

[0015] By adopting the above technical solution, when the sampling inner cylinder is inserted into the ground, the multiple card plates are moved to the lower end of the sampling inner cylinder, and each card block is inserted into the side wall of the adjacent sampling inner cylinder, thereby realizing the sealing process of the end of the sampling inner cylinder.

[0016] Optionally, a sampling plate is slidably abutted against the lower side of each of the card plates, and a driving plate is fixedly connected to one end of each of the sampling plates located on the inner wall of the sampling outer cylinder, and each of the driving plates can abut against the side of the adjacent card plate away from the center of the sampling outer cylinder, a reciprocating screw is penetrated and threadedly inserted on each of the driving plates, a driven bevel gear is fixedly sleeved on the end of each of the reciprocating screws, and a driving bevel gear ring that is simultaneously meshed with a plurality of the driven bevel gears is connected to the side wall of the sampling inner cylinder.

[0017] By adopting the above technical scheme, in the process of driving the sampling inner cylinder to rotate driven by the driving motor, the sampling inner cylinder drives the driving bevel gear ring to rotate, and the driving bevel gear ring drives multiple driven bevel gears to rotate during the rotation process, and each driven bevel gear drives the connected reciprocating screw to rotate during the rotation process, and each reciprocating screw drives the connected driving plate to move during the rotation process, and the driving plate drives the connected sampling plate and the clamping plate to move during the movement process, thereby realizing the process of sealing the end of the sampling inner cylinder by driving the multiple clamping plates through the driving assembly.

[0018] Optionally, a plurality of gear blocks are fixedly connected to the side wall of the sampling inner cylinder, and a plurality of tooth grooves for the gear blocks to be plugged into are formed on the inner wall of the driving bevel gear ring.

[0019] By adopting the above technical solution, the sampling inner cylinder and the driving bevel gear ring are connected by setting a tooth block and a tooth groove, so that the sampling inner cylinder can not only drive the clamping plate to move, but also be moved out of the interior of the sampling outer cylinder after the sampling is completed, thereby facilitating the process of taking out the sample inside the sampling inner cylinder.

[0020] Optionally, a plurality of rollers are installed at the bottom of the sampling box.

[0021] By adopting the above technical solution and providing a plurality of rollers, the process of moving the sampling box by the staff is facilitated.

[0022] Optionally, a plurality of legs are provided inside the sampling box, and the legs can be moved out of the sampling box under the drive of the driving assembly.

[0023] By adopting the above technical solution and providing supporting legs, the sampling box can be supported by the supporting legs, thereby reducing the phenomenon of unstable support of the sampling box caused by supporting the sampling box by rollers during the sampling process.

[0024] Optionally, the cross-section of each of the support legs is set to be polygonal, and a support screw is threadedly inserted into the upper end of each of the support legs, and a support slave gear is fixedly sleeved on the upper end of each of the support screws. Multiple support slave gears are meshed with the same support main gear ring, and the support main gear ring is connected to the driving assembly and can rotate under the drive of the driving assembly.

[0025] By adopting the above technical solution, during sampling, the driving component drives the supporting main gear ring to rotate, and the supporting main gear ring drives multiple supporting slave gears to rotate during the rotation process, and each supporting slave gear drives the connected supporting screw to rotate during the rotation process, and each supporting screw drives the connected support leg to move downward during the rotation process, thereby realizing the process of supporting the sampling box by driving the support legs through the driving component during the sampling process.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By providing a blocking assembly composed of a plurality of card plates, the end of the sampling inner cylinder can be blocked, thereby reducing the phenomenon of samples falling inside the sampling inner cylinder.

[0027] 2. By setting a driving component to drive the sampling outer cylinder and the sampling inner cylinder to move, the labor required by the staff during the sampling process is reduced.

[0028] 3. By setting rollers and legs to alternately support the sampling box, it is convenient for the staff to move the sampling box and fix the sampling box during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0031] Figure 3 yes Figure 2 A partial enlarged schematic diagram of the structure A in the middle.

[0032] Figure 4 yes Figure 2 A partial enlarged schematic diagram of the structure B in the figure.

[0033] Description of reference numerals: 1, sampling box; 11, roller; 2, sampling outer cylinder; 21, first vertical slot; 22, rotating slot; 23, second vertical slot; 3, sampling inner cylinder; 31, limit block; 32, rotating disk; 321, rotating card slot; 33, card slot; 34, gear block; 35, handle; 4, driving assembly; 41, driving motor; 42, driving gear; 43, secondary gear ring; 44, connecting sleeve; 441, rotating block; 442, rotating spring; 5, sealing assembly; 51, clamping plate; 511, clamping block; 512, magnetic block; 52, sampling plate; 53, driving plate; 54, reciprocating screw; 55, driven bevel gear; 56, driving bevel gear ring; 561, tooth groove; 6, push rod; 61, push rod gear ring; 62, push rod gear; 7, support leg; 71, supporting screw; 72, supporting slave gear; 73, supporting main gear ring; 74, supporting drive gear. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1 -Attached Figure 4 This application is described in further detail.

[0035] The present application embodiment discloses a geological drilling sampler, referring to Figure 1-Figure 4 , including a sampling box 1, a vertically arranged sampling outer cylinder 2 is provided inside the sampling box 1, a sampling inner cylinder 3 is slidably inserted inside the sampling outer cylinder 2, a limiting block 31 is fixedly connected to the outer wall of the sampling inner cylinder 3, a first vertical groove 21 is opened on the inner wall of the sampling outer cylinder 2 for the limiting block 31 to be slidably inserted into the inside of the sampling outer cylinder 2, and one end of the first vertical groove 21 is located inside the sampling outer cylinder 2 and is connected to a rotating groove 22 opened along the circumference of the sampling outer cylinder 2, and the limiting block 31 can be located inside the rotating groove 22 and rotate around the inner wall of the sampling outer cylinder 2.

[0036] A driving assembly 4 is also provided inside the sampling box 1, and the driving assembly 4 is used to drive the lower ends of the sampling outer cylinder 2 and the sampling inner cylinder 3 to penetrate the bottom side wall of the sampling box 1 and be plugged into the ground. A plugging assembly 5 is provided inside the sampling outer cylinder 2 at the lower side of the end of the sampling inner cylinder 3, and the plugging assembly 5 is used to plug the lower end of the sampling inner cylinder 3.

[0037] During actual use, the sampling box 1 is placed at the desired sampling position, and then the driving component 4 is started. The driving component 4 drives the sampling outer tube 2 and the sampling inner tube 3 to be inserted into the underground and allows the sample to enter the interior of the sampling inner tube 3. Then, the end of the sampling inner tube 3 is sealed by the sealing component 5, and the sample is cut off at the same time, thereby realizing the geological sampling process.

[0038] By providing the blocking component 5 to block the end of the sampling inner cylinder 3 , the sample can be located inside the sampling inner cylinder 3 and taken out stably, which facilitates the sampling process of the staff.

[0039] The driving assembly 4 includes a driving motor 41 located inside the sampling box 1, and the driving motor 41 is set as a double-axis motor and is set vertically. One of the output shafts of the driving motor 41 is set vertically downward and fixedly connected to a driving gear 42, and a slave gear ring 43 is meshed on one side of the driving gear 42, and the slave gear ring 43 is threadedly sleeved to the outside of the sampling outer tube 2. The position of the upper end of the outer wall of the sampling outer tube 2 is set as a polished rod.

[0040] A connecting sleeve 44 is fixedly connected to the upper side of the sampling gear ring 43. The connecting sleeve 44 is also sleeved on the outside of the sampling outer cylinder 2 and is slidably connected to the sampling outer cylinder 2 in the vertical direction. A plurality of rotating blocks 441 are arranged on the inner wall of the connecting sleeve 44. The plurality of rotating blocks 441 are evenly distributed around the inner wall of the connecting sleeve 44. One end of each rotating block 441 close to the inner wall of the connecting sleeve 44 is slidably plugged into the inside of the connecting sleeve 44 and is fixedly connected to a rotating spring 442. The rotating spring 442 is set as a pressure spring and is used to drive the connected rotating block 441 to move out of the inside of the connecting sleeve 44.

[0041] A rotating disk 32 is fixedly connected to the top of the sampling inner cylinder 3. The diameter of the rotating disk 32 is similar to the outer diameter of the sampling outer cylinder 2. A through hole with the same diameter and connected to the hollow in the middle of the sampling inner cylinder 3 is provided in the middle of the rotating disk 32. A plurality of rotating slots 321 are provided on the outer wall of the rotating disk 32. Each rotating block 441 can be inserted into the adjacent rotating slot 321 under the drive of the connected rotating spring 442.

[0042] During the sampling process, the driving motor 41 is started to drive the driving gear 42 to rotate, and the driving gear 42 drives the connected slave gear ring 43 to rotate during the rotation process, and the slave gear ring 43 drives the sampling outer cylinder 2 and the sampling inner cylinder 3 to be inserted downward into the ground during the rotation process. Afterwards, when the light rod at the outer wall of the sampling outer cylinder 2 moves to the inside of the slave gear ring 43, the driving motor 41 drives the slave gear ring 43 and the connecting sleeve 44 connected to the slave gear ring 43 to rotate, and at this time, the rotating block 441 connected to the inner wall of the connecting sleeve 44 is inserted into the rotating card slot 321 provided on the side wall of the rotating disk 32, so that the driving motor 41 can drive the sampling inner cylinder 3 to rotate during the rotation process, so that the sample inside the sampling inner cylinder 3 can be located inside the sampling inner cylinder 3 more evenly.

[0043] A push rod 6 is provided at the lower side of the rotating groove 22. The push rod 6 is vertically arranged and the upper end of the push rod 6 can penetrate the bottom side wall of the rotating groove 22 and abut against the limit block 31. The push rod 6 is located inside the sampling outer cylinder 2. One end of the push rod 6 is threadedly sleeved with a push rod gear 62. One side of the push rod gear 62 is meshed with a push rod gear ring 61. The push rod gear ring 61 is fixedly sleeved to the outside of the sampling inner cylinder 3. A second vertical groove 23 is provided on the inner wall of the sampling outer cylinder 2 for the push rod gear ring 61 to move out of the sampling outer cylinder 2 in the vertical direction.

[0044] During the rotation of the sampling inner cylinder 3, the sampling inner cylinder 3 drives the connected push rod gear ring 61 to rotate, and the push rod gear ring 61 drives the push rod gear 62 to rotate during the rotation. The push rod gear 62 drives the push rod 6 to move upward during the rotation. After the limit block 31 rotates one circle, it abuts against the push rod 6 and moves upward under the drive of the push rod 6, so that the limit block 31 drives the sampling inner cylinder 3 to move upward. Since the sampling inner cylinder 3 and the rotating disk 32 rotate under the drive of the connecting sleeve 44, the lower side wall of the rotating disk 32 can abut against the upper side wall of the rotating block 441, thereby driving the sampling outer cylinder 2 to move upward, so that the thread on the outer wall of the sampling outer cylinder 2 can move to the slave gear ring 43, so that the slave gear ring 43 can be threadedly connected with the sampling outer cylinder 2 again, and by reversely turning on the driving motor 41, the sampling outer cylinder 2 and the sampling inner cylinder 3 can be driven to move to the inside of the sampling box 1 to end sampling.

[0045] The plugging assembly 5 includes a plurality of horizontally arranged card plates 51 located inside the sampling outer cylinder 2, and the upper side wall of each card plate 51 can abut against the end side wall of the sampling inner cylinder 3 located at one end inside the sampling outer cylinder 2. The plurality of card plates 51 are evenly distributed around the inner wall of the sampling outer cylinder 2, and the plurality of card plates 51 can be spliced ​​together to form a circle and plug the end side wall of the sampling inner cylinder 3. The side of each card plate 51 close to the inner wall of the adjacent sampling outer cylinder 2 can be slidably plugged into the inner wall of the sampling outer cylinder 2.

[0046] A card block 511 is fixedly connected to the upper side of one end of each card plate 51 away from the axis of the sampling outer cylinder 2. The vertical cross-section of each card block 511 is T-shaped. A plurality of T-shaped card slots 33 are provided on the lower end side wall of the sampling inner cylinder 3. The plurality of T-shaped card slots 33 are arranged in a one-to-one correspondence with the plurality of card blocks 511, and each card block 511 can be inserted into the corresponding card slot 33 and abut against the slot wall of the card slot 33.

[0047] A horizontally arranged sampling plate 52 is provided on the lower side of each card plate 51, and each sampling plate 52 can be inserted into the inner wall of the adjacent sampling outer cylinder 2 in the radial direction, and a plurality of sampling plates 52 can be spliced ​​together to form a circle and block the internal through hole of the sampling outer cylinder 2. A vertically arranged driving plate 53 is fixedly connected to the side of each sampling plate 52 away from the axis of the sampling outer cylinder 2, and a side of each driving plate 53 close to the axis of the sampling outer cylinder 2 can abut against the adjacent card plate 51, and a magnetic block 512 is fixedly connected to the side of the card plate 51 close to the adjacent driving plate 53, and the driving plate 53 is made of iron.

[0048] Each driving plate 53 is penetrated and threaded with a reciprocating screw 54, each reciprocating screw 54 is horizontally arranged, and a driven bevel gear 55 is fixedly connected to the side of each reciprocating screw 54 away from the axis of the sampling outer cylinder 2. Multiple driven bevel gears 55 are meshed with the same driving bevel gear ring 56. The inner wall of the driving bevel gear ring 56 is provided with multiple tooth grooves 561, and the outer wall of the sampling inner cylinder 3 is fixedly connected with multiple tooth blocks 34, each of which can be inserted into the tooth groove 561 in the vertical direction and abut against the groove wall of the tooth groove 561.

[0049] During actual use, the sampling outer cylinder 2 and the sampling inner cylinder 3 are plugged into the ground under the drive of the driving motor 41, and then the driving motor 41 drives the sampling inner cylinder 3 to rotate. During the rotation, the sampling inner cylinder 3 drives the driving bevel gear ring 56 to rotate, and the driving bevel gear ring 56 drives multiple driven bevel gears 55 to rotate during the rotation. Each driven bevel gear 55 drives the connected reciprocating screw 54 to rotate during the rotation, and each reciprocating screw 54 drives the connected driving plate 53 to move during the rotation. During the movement, the driving plate 53 drives the sampling plate 52 and the card plate 51 to move, so that the card block 511 can be inserted into the card slot 33 so that the multiple card plates 51 cooperate with each other to seal the end side wall of the sampling inner cylinder 3.

[0050] During the installation process, the sampling inner cylinder 3 is inserted into the sampling outer cylinder 2, so that the magnetic block 512 connected to one side of the clamping plate 51 abuts against the driving plate 53, and then the sampling inner cylinder 3 is rotated in the opposite direction, so that the driving plate 53 can drive the clamping plate 51 and the sampling plate 52 to move to the inner wall of the sampling outer cylinder 2 for subsequent sampling operations. In this embodiment, it is set that the clamping plate 51 reciprocates twice when the sampling inner cylinder 3 rotates one circle.

[0051] Reference Figure 1 and Figure 2 A plurality of rollers 11 are also provided at the bottom of the sampling box 1 . In the present embodiment, four rollers 11 are provided, and the four rollers 11 are evenly distributed at the bottom of the sampling box 1 .

[0052] The rollers 11 can be provided to facilitate the process of workers moving the sampling box 1 .

[0053] The sampling box 1 is also provided with a plurality of legs 7 inside. In the present embodiment, four legs 7 are provided, and the four legs 7 are vertically provided at the four corners of the sampling box 1. The cross section of each leg 7 is set to be rectangular, and the lower end of each leg 7 penetrates the bottom side wall of the sampling box 1 and slides and abuts against the bottom side wall of the sampling box 1 in the vertical direction. The upper side of each leg 7 is provided with a vertically provided support screw 71, and the lower end of each support screw 71 is threadedly inserted into the inside of the adjacent leg 7, and the lower end outer wall of each support screw 71 is set to be a bare rod.

[0054] The upper end of each support leg 7 is fixedly connected to a supporting slave gear 72, and multiple supporting slave gears 72 are meshed with the same supporting main gear ring 73. The inner wall of the supporting main gear ring 73 is meshed with a supporting driving gear 74, and the lower side of the supporting driving gear 74 is fixedly connected to the output shaft of the driving motor 41 arranged vertically upward.

[0055] During the operation of the driving motor 41, the driving motor 41 drives the connected support driving gear 74 to rotate, and the support driving gear 74 drives the connected support main gear ring 73 to rotate during the rotation process, and the support main gear ring 73 drives the connected multiple support slave gears 72 to rotate during the rotation process, and each support slave gear 72 drives the connected support lead screw 71 to rotate during the rotation process, and each support lead screw 71 drives the connected support leg 7 to move downward until it rotates to the bare rod during the rotation process. Thus, the support process of the sampling box 1 is realized by the multiple support legs 7.

[0056] A handle 35 is fixedly connected to the upper side of the rotating disk 32 .

[0057] The handle 35 can be provided to facilitate the staff to move the sampling inner cylinder 3 out of the sampling outer cylinder 2 .

[0058] The implementation principle of a geological drilling sampler in an embodiment of the present application is: during the sampling process, the sampling box 1 is moved to the upper side of the sampling location, and then the drive motor 41 is started. The drive motor 41 drives the support legs 7 to support the sampling box 1 on the one hand, and drives the sampling outer cylinder 2 and the sampling inner cylinder 3 to be plugged into the ground on the other hand.

[0059] Then the driving motor 41 drives the sampling outer cylinder 2 to rotate, and the sampling outer cylinder 2 drives the multiple sampling plates 52 and the clamping plate 51 to move during the rotation, so as to seal the sample with the inside of the sampling inner cylinder 3, and then the geological sampling process is realized.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A geological drilling sampler, characterized in that: The invention comprises a sampling box (1), wherein a sampling outer cylinder (2) is arranged inside the sampling box (1), a sampling inner cylinder (3) is slidably inserted inside the sampling outer cylinder (2), a driving component (4) is connected inside the sampling box (1), the driving component (4) can drive the sampling outer cylinder (2) and the lower end of the sampling inner cylinder (3) to pass through the sampling box (1), the bottom of the sampling inner cylinder (3) is connected to a sampling blocking component (5) for blocking the bottom of the sampling inner cylinder (3), the blocking component (5) is connected to the driving component (4) and can block the lower end side wall of the sampling inner cylinder (3) under the drive of the driving component (4).

2. A geological drilling sampler according to claim 1, characterized in that: The driving assembly (4) comprises a driving motor (41) located inside the sampling box (1), the output shaft of the driving motor (41) is fixedly connected to a driving gear (42), one side of the driving gear (42) is meshed with a secondary gear ring (43), and the secondary gear ring (43) is threadedly sleeved onto the outside of the sampling outer cylinder (2).

3. A geological drilling sampler according to claim 2, characterized in that: The sampling inner cylinder (3) is connected to the sampling outer cylinder (2) in a sliding and rotatable manner. A rotating disk (32) is fixedly connected to the upper end of the sampling inner cylinder (3). A connecting sleeve (44) sleeved on the outside of the sampling outer cylinder (2) is fixedly connected to the upper side of the sampling gear ring (43). A plurality of rotating blocks (441) are slidably inserted on the inner wall of the connecting sleeve (44), and a rotating spring (442) capable of driving the rotating block (441) to move out of the connecting sleeve (44) is connected to one side of each rotating block (441). A plurality of rotating card slots (321) capable of being inserted into the rotating blocks (441) are provided on the side wall of the rotating disk (32).

4. A geological drilling sampler according to claim 3, characterized in that: The upper end of the outer wall of the sampling outer cylinder (2) is arranged as a bare rod, and a limit block (31) is fixedly connected to the outer wall of the sampling inner cylinder (3), and the limit block (31) is slidably connected to the inner wall of the sampling outer cylinder (2) along the length direction of the sampling outer cylinder (2), and a rotation groove (22) for the limit block (31) to rotate is provided on the inner wall of the sampling outer cylinder (2), and a push rod (6) is arranged on the lower side of the rotation groove (22), and a push rod gear (62) is sleeved on the outer side of the push rod (6), and a push rod gear ring (61) meshing with the push rod gear (62) is fixedly connected to the outer wall of the sampling inner cylinder (3), and the upper end of the push rod (6) can be inserted into the inside of the rotation groove (22) and abut against the lower side wall of the limit block (31).

5. A geological drilling sampler according to any one of claims 3 or 4, characterized in that: The blocking assembly (5) comprises a plurality of card plates (51), each of which is slidably plugged into the side wall of the adjacent sampling outer cylinder (2), each of which can be moved out of the side wall of the sampling outer cylinder (2) and abut against the end side wall of the sampling inner cylinder (3), and a plurality of card plates (51) can be spliced ​​together to block the end side wall of the sampling inner cylinder (3), each of which is fixedly connected to a card block (511), and each of which can be plugged into the end side wall of the sampling inner cylinder (3) along the radial direction.

6. A geological drilling sampler according to claim 5, characterized in that: The lower side of each of the clamping plates (51) is slidably abutted against a sampling plate (52), one end of each of the sampling plates (52) located on the inner wall of the sampling outer cylinder (2) is fixedly connected to a driving plate (53), and each of the driving plates (53) can abut against a side of an adjacent clamping plate (51) away from the center of the sampling outer cylinder (2), each of the driving plates (53) is penetrated by and threadedly plugged with a reciprocating screw (54), the end of each of the reciprocating screws (54) is fixedly sleeved with a driven bevel gear (55), and a driving bevel gear ring (56) that is simultaneously meshed with a plurality of the driven bevel gears (55) is connected to the side wall of the sampling inner cylinder (3).

7. A geological drilling sampler according to claim 6, characterized in that: A plurality of tooth blocks (34) are fixedly connected to the side wall of the sampling inner cylinder (3), and a plurality of tooth grooves (561) for the tooth blocks (34) to be inserted into are formed on the inner wall of the driving bevel gear ring (56).

8. A geological drilling sampler according to claim 1, characterized in that: A plurality of rollers (11) are installed at the bottom of the sampling box (1).

9. A geological drilling sampler according to claim 8, characterized in that: A plurality of legs (7) are arranged inside the sampling box (1), and the legs (7) can be moved out of the sampling box (1) under the drive of the driving assembly (4).

10. A geological drilling sampler according to claim 9, characterized in that: The cross section of each support leg (7) is configured to be polygonal, and a support screw (71) is threadedly inserted at the upper end of each support leg (7), and a support slave gear (72) is fixedly sleeved at the upper end of each support screw (71), and a plurality of support slave gears (72) are meshed with the same support main gear ring (73), and the support main gear ring (73) is connected to the drive assembly (4) and can rotate under the drive of the drive assembly (4).

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